JPH1034611A - Manufacture of decorative sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain surface fabrication technique for MDF(medium-density wooden fiber board) by which it is possible to reinforce the surface layer of MDF and at the same time, make the surface decorative, and which saves natural resources and energy, and has no environmental problem. SOLUTION: An isocyanate composition comprising polymethylene polyphenylpolyisocyanate, polyoxyalkylenepolyol with a molecular weight of 1000 or more and 600 or less and alkylenecarbonate as essential components, is applied to and caused to permeate through a base (2) formed entirely of or with its surface part formed of a medium-density wooden fiber board (2a). In addition, a decorative laminated layer (1) is formed while the lamination is still uncured, and is thermally pressed into a single piece.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic having excellent water resistance, adhesion and strength of a decorative layer, and cosmetics using a medium density wood fiber board (hereinafter referred to as MDF) as a whole or on its surface. The present invention relates to a plate manufacturing method.

[0002]

2. Description of the Related Art Conventionally, two-component adhesives composed of a prepolymer of diisocyanate and polyoxyalkylene polyol and a two-pack type adhesive of an aqueous solution of poval and isocyanate have been used for bonding woody materials and surface decorative materials containing water. I have. However, these adhesives have a high viscosity, and if they are used as they are as surface treatment adhesives, there is no anchoring effect to the MDF, and there is a defect that the adherend is peeled off by tearing the surface layer of the MDF.

In order to prevent this, the prepolymer can be diluted with a solvent and then infiltrated into MDF in advance. However, in this case, evaporation of the solvent is required, which results in loss of energy and resources, and is environmentally friendly. Not preferred.

[0004] In addition, an emulsion type water-based paint is applied to the surface of the MDF to make up, but if it is used, fuzz is noticeable, adhesion is poor, and the surface layer of the MDF peels off. In order to prevent the MDF surface layer from peeling off or to improve the strength, it has been proposed to impregnate the MDF by infiltrating a polymeric isocyanate or crude MDI into the surface layer of the MDF. Requires a long period of time, and in particular, an inert solvent is used because it has a high viscosity and is difficult to penetrate in a combined system with an epoxy resin.

Moreover, at present, the penetration of the polymeric isocyanate or the crude MDI is intended to strengthen the MDF itself, and is not intended to strengthen the decorative layer. Since painting and the like are performed, the adhesion becomes poor with a water-based paint or a water-based adhesive, and the necessity of surface sanding or the like appears, which is not necessarily an industrially advantageous method.

[0006]

SUMMARY OF THE INVENTION The present invention improves upon the state of the prior art and provides an energy-saving, resource-saving and environmentally friendly surface treatment of MDF capable of enhancing the surface layer of MDF and at the same time making the surface makeup possible. Establishing technology. In addition, the present inventors previously described polymeric MDI and a molecular weight of 200 to 10
The surface of the MDF in which a composition containing essential polypropylene glycol or its glycidyl ether is permeated into the MDF and a veneer veneer is adhered to the surface, or a thermosensitive gel type emulsion paint is applied and embossed. Although a cosmetic technology was invented and applied for, the difference between the effects of the prior invention and the present invention is not only to improve the toughness of the MDF, but also to strengthen the decorative layer and to improve the adhesive force between the decorative layer and the MDF. Things.

[0007]

Means for Solving the Problems The method for manufacturing a decorative board according to claim 1 is described as follows. "A board (2) whose whole or surface portion is formed of a medium-density wood fiber board (2a), Methylene polyphenyl polyisocyanate, molecular weight 1000
Above, 6000 or less polyoxyalkylene polyol, and after applying and penetrating an isocyanate composition containing an alkylene carbonate as an essential component, in an uncured state, forming a decorative layer (1), heating and pressing Unite "
It is characterized by the following.

According to this, the molecular weight is 1000-6000.
Even if a polyoxyalkylene polyol having a relatively large molecular weight is used, it easily penetrates into MDF (2a),
In addition to strengthening the MDF (2a), the decorative board (A) has improved abrasion strength with the decorative layer (1) and the decorative layer (1) itself. You can do it.

Claim 2 states that "the decorative layer (1) has a water content of 10%
It consists of a wood veneer veneer (1a) containing the above '', whereby the natural wood texture of the wood veneer veneer (1a) is directly applied to the decorative layer (1). In addition, the decorative layer (1) is remarkably strengthened by the presence of the isocyanate composition, and a decorative plate (A) having a decorative layer (1) having a texture like natural wood and a very high strength can be obtained.

[0010] Claim 3 is characterized in that "the decorative layer (1) is a decorative thin paper (1b)". According to this, the decorative thin paper (1b) which is freely printed is used. Therefore, it is possible to form a free pattern on the decorative board (A) and obtain a decorative board (A) having a decorative layer (1) which is significantly strengthened by the presence of the isocyanate composition.

A fourth aspect of the present invention relates to a “substrate whose whole or surface portion is formed of a medium-density wood fiber board (2a).
(2), after applying and penetrating an isocyanate composition containing polymethylene polyphenyl polyisocyanate, polyoxyalkylene polyol having a molecular weight of 1,000 or more and 6,000 or less, and alkylene carbonate as essential components, in an uncured state And gelling by applying an aqueous paint, and curing by applying heat and pressure. "

According to this, since the water-based paint is used,
Since the solvent does not evaporate as in the prior art, the working environment is good and the affinity with the isocyanate composition is good.
A decorative layer (1) having extremely excellent adhesion to a) is obtained. In addition, the presence of the isocyanate composition causes
The permeation layer of (2a) is strengthened.

[0013] The "claim 5" states that "when heating and pressurizing, the decorative layer
A surface pressing member (4) is provided on the surface of (1), and an elastic cushion member (5) is provided on the back surface of the substrate (2) ''. The elastic and hard surface pressing member (4) of the elastic cushion member (5) arranged on the back of (2)
As a result, the surface pressing member (4) will evenly contact the entire surface of the decorative layer (1) and press the decorative surface (1d),
The entangled portion of the fibers of the MDF (2a) does not appear on the surface of the decorative layer (1), and a beautiful decorative surface (1d) can be obtained.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. The embodiment of the substrate (2) of the present invention can be applied to the case where the whole substrate (2) is composed of the MDF (2a) as shown in FIG. 1 or FIG. ), The MDF (2a) adhered to the surface of the substrate body (3) with an adhesive. Examples of the substrate body (3) in this case include various types of wood plates such as plywood and particle board, as well as inorganic plates such as silica boards, wood cement boards, and mineral fiber boards having a specific gravity of 0.5 or more. Things can be used.

The decorative layer (1) is formed by bonding a wooden decorative veneer (1a) or decorative thin paper (1b) to the surface of the MDF (2a) (FIGS. 1 and 2), or by applying an aqueous paint. Formed (FIGS. 3 and 4)
However, MDF (2a) is made of a polymeric isocyanate, a polyoxyalkylene polyol having a molecular weight of 1,000 to 6,000, and an alkylene carbonate as essential components on a surface to which woody decorative veneer (1a) or decorative thin paper (1b) is to be bonded. The composition is allowed to penetrate, and in the former case, the wooden veneer veneer (1a) or the veneer sheet (1b) containing 10% or more of moisture in an uncured state is placed and adhered, and the latter is adhered to the latter. Apply water-based paint to gel, then apply it to the decorative surface (1d)
Place the surface pressing member (4) on the
a), contact the embossed plate (4b) or roll it while contacting the embossing roll (4c) etc.), contact the elastic cushion member (5) on the back surface of the substrate (2), and 5) Heat and press through the wood veneer veneer
(1a) or decorative thin paper (1b) is adhered to the surface of the MDF (2a) and cured, or the water-based paint is cured to form the decorative layer (1).

The polymeric isocyanate used in the present invention is a condensate obtained by pretreatment of isocyanate with 4,4'-diphenylmethane before purification, and is generally called polymethylene polyphenylene isocyanate, polymeric polyisocyanate, crude MDI, or the like. , P-MDI
And so on.

The polyoxyalkylene polyol having a molecular weight of 1,000 to 6,000 refers to polypropylene oxide,
Glycols composed of propylene oxide and ethylene oxide, triols to which propylene oxide is added starting from trimethylolpropane, and the like, and refer to polyols having a molecular weight of 1,000 to 6,000. Molecular weight 1
If the molecular weight is less than 000, the reaction product with the isocyanate becomes too hard, and if the molecular weight is more than 6000, the product becomes too soft and the viscosity is too high, so that penetration into MDF becomes poor. Usually, the most preferred is from 2000 to 4000.

The alkylene carbonate includes ethylene carbonate, propylene carbonate, butylene carbonate and the like, and propylene carbonate is most preferred. This is a compatibilizer between isocyanate and polyol, and when isocyanate reacts with water, it is hydrolyzed and reacts with isocyanate. It is also known as an odorless and nontoxic compound even if it is partially volatilized.

The water content of MDF (2a) is usually 7 to 8%,
This also increases the length of the urethane chain in the permeable composition, but the decorative thin veneer (1a) or decorative tissue
In the case of (1b), when the content of water is 10% or more, the cosmetic property after heating, pressurizing and curing is excellent. It should be noted that the moisture (decorative thin veneer (1a) or decorative thin paper (1b)) sufficiently adheres and cures even at about 120%, so that strict management is not required.

The water-based paint for forming the decorative layer (1) used in the present invention is a water-based heat-sensitive gelled emulsion-type coating resin. Because it is an emulsion type, it gels uniformly in a short time even at a low temperature even in a state containing water,
The pre-drying process can be simplified, energy is saved, and productivity is improved.

Moreover, the water-based thermogelling emulsion type paint, when applied to the MDF (2a), gels even in the state of containing water as described above, so that despite the water-based paint, the wood fiber "Swelling" and "fuzz" are unlikely to occur. And because it is an aqueous paint, it contains moisture,
Since the wood fiber absorbs the moisture of the paint by the application and becomes flexible, when pressurized, a very sharp surface processed layer can be obtained at a low pressure and in a short time. In addition, M
Since the DF (2a) becomes soft, the degree of processing increases, and processing such as deep drawing becomes possible.

The aqueous thermosensitive gelling emulsion type paints which can be used in the practice of the present invention include anionic ionic emulsions, for example, ethylene-vinyl acetate-acrylic having a carboxyl group, (meth) acrylic, Styrene-
Emulsions such as (meth) acrylic and ethylene- (meth) acrylic are preferred. This is for improving the reactivity with the thermosensitive gelling agent.

Examples of the heat-sensitive gelling agent include metal ammonium tin salts such as zinc ammonium sulfate, zinc ammonium acetate, and zinc ammonium carbonate, which readily react with the carboxyl groups of the emulsion. Also,
By using a higher fatty acid salt such as zinc ammonia oleate, it is possible to impart antibacterial properties to the paint.

These heat-sensitive gelling agents desirably gel the above emulsion at 40 to 70 ° C. 40 ℃
In the case of gelling below, the viscosity of the emulsion increases at room temperature and the workability is poor, and at 70 ° C. or more, it causes warpage and dimensional change of the MDF (2a). In addition, since the reaction between the two is an ion-crosslinking type reaction, the emulsion preliminarily gelled by heating is fluidized and follows the mold, and a sharp decorative layer (1) is formed under low pressure and short-time heating.

The configuration at the time of curing by heating and pressurizing is an essential requirement for improving the finish of the decorative layer (1) of the MDF decorative plate (A), and the decorative surface (1d) has a mirror-finished hard plate ( 4a), matte mirror plate (not shown), emboss plate (4b), emboss roll
A surface pressing member (4) such as (4c) is used. It is usually made of metal (chrome plating finish), and an elastic cushion member (5) is arranged on the non-decorated surface (= back surface) of the MDF decorative plate (A). As the elastic cushion member (5), a cushion member having excellent heat resistance and rich in elastic restoring force, such as silicon rubber, fluororesin rubber, urethane rubber, or the like, is used. In this way MD
The front side pressing member (4) is brought into contact with the decorative surface (1d) of the decorative panel (A), and the elastic cushion member (5) is brought into contact with the rear surface thereof, thereby heating and pressing. Thereby, the decorative surface (1d) is in a uniform finished state. However, if this elastic cushion member (5) is missing or cushion members (5) are used on both sides,
In the decorative surface (1d) of (A), a spot pattern of partial tangling of the wood fibers constituting the MDF (2a) occurs, and the cosmetic property is significantly impaired.

Since the isocyanate composition also functions as an adhesive, a decorative layer made of an aqueous emulsion paint
The adhesion between (1) and MDF (2a) is significantly improved. Also,
Since the polyoxyalkylene polyol having a molecular weight of 1,000 to 6000 and the alkylene carbonate are essential components, the isocyanate composition has a good affinity for water and an excellent affinity for wood fibers constituting MDF (2a), Slightly swellable, easy to adjust reactivity when penetrated into wood fiber, helps prevent dimensional change due to water absorption of wood fiber after hardening, and enables supply of boiling resistant products It is.

(Embodiment of the Invention) Although the embodiment of the present invention has various specifications, it is important that the isocyanate-reactive functional group is not more than equimolar to the isocyanate functional group of the polymeric isocyanate, and is about 0.5 mol or more. A polyoxyalkylene polyol having a molecular weight of 1,000 to 6,000, an alkylene carbonate, and other necessary reactants are blended so that the alkylene carbonate is compatible with the polyalkylene carbonate and has a minimum amount necessary for viscosity control.
This prepared composition is applied to one or both sides of the MDF substrate (2) or one side of the MDF (2a) on the surface of the substrate (2).
Although it is allowed to penetrate, the coating amount is suitably 5 to 20 g / m ² .
If the amount is too small, the adhesive effect and the reinforcing effect are inferior, and if the amount is too large, the material cost increases accordingly. Then, with the coating and penetrating agent in an uncured state (may be immediately after coating), the hydrated wooden thin veneer (1a) and the decorative thin paper (1b) are placed on the surface to be bonded of the MDF (2a), A mirror-finished hard plate (4a) plated with chrome is applied to the decorative surface (1d) of a thin wooden veneer (1a) or decorative thin paper (1b),
The elastic cushion member (5) is applied to the back surface and pressurized, heated and cured. Pressure is 5~20kgf / cm ^2, heating 80
The temperature is preferably about 140 ° C. and the time is about 2 to 20 minutes. In addition, in the case of makeup using a water-based paint, the application / penetration agent is applied to an MDF substrate.
MDF (2) on one or both sides of (2) or on the surface of substrate (2)
a) Applying and penetrating on one side, and then apply a heat-sensitive gel type water-based coating in a state where the coating and penetrating agent is uncured (may be immediately after application), and heat the mixture at 60 to 80 ° C. insert.
Since the heat-sensitive water-based paint gels in a few seconds to a few minutes by the heating, a metal embossing roll (4c) is applied to the decorative surface (1d),
Curing is performed while passing between the rolls (4c) and (5a) such that the urethane rubber roll (5a) hits the back surface. In the case of the decorative thin paper (1b), the decorative thin paper (1b) is continuously converted to the MDF using a laminate machine (not shown) having such a structure.
The curing can be completed while adhering to the surface to be adhered in (2a). Next, the obtained MDF decorative board (A) can be subjected to surface strengthening and beautification as required by a usual coating method. Hereinafter, the present invention will be described in more detail with reference to Examples, but these are not representative of the present invention.

Example 1 22.7 polypropylene glycol having a molecular weight of 1000 as a permeable adhesive to MDF
wt%, epoxidized linseed oil (EP 8.8%) 22.7w
t%, 9.1% by weight of propylene carbonate, 45.5% by weight of polymeric MDI (NCO approx. 36%), and apply this composition to the surface of the MDF decorative veneer to be adhered by a dry manufacturing method of 6 mm thick and 30 cm square. 10 g was applied.
Since the coating liquid immediately permeated into the inside from the surface to be adhered of the MDF, a veneer veneer of 0.15 mm thick and containing 41% of moisture was placed thereon, and the chromium was subjected to release treatment on the veneer. Placing a mirror-plated hard plate, applying a silicone rubber sheet to the back of the MDF, and pressing the flat plate at 120 ° C,
It was adhered under a press condition of 10 kgf / cm ² and 5 minutes to obtain a decorative veneer-attached MDF decorative plate. Next, apply 140
Lightly grind with 0 mesh sandpaper,
A decorative panel which can be used as a flooring material was obtained by performing liquid urethane resin coating. The performance of this decorative board is shown in (Table-1).

(Comparative Example to Example 1) [Example 1]
In the above, those lacking propylene carbonate had high viscosity and insufficient permeation into MDF, and required a long time, and thus lacked productivity. In addition, when the same composition as in [Example-1] was used, the laminated structure having a double-sided cushion member and the one using a cushion member on the decorative surface caused the decorative surface to become damaged and the sanding of # 400 resulted in It could not be erased, and post-processing was extremely difficult.

[Example 2] In [Example 1], instead of decorative veneer, a thin decorative paper (with a water content of about 1) printed with a grain pattern was used.
MDF decorative board was obtained in exactly the same manner except that 5%) was used. The performance is summarized in (Table 1), and an MDF decorative board which can be used as a floor material immersed in water resistance which does not cause inter-sheet peeling was obtained.

(Comparative Example to Example 2) Normally, vinyl acetate or vinyl acetate-urea emulsion is used for bonding decorative paper. It was destroyed and the performance was inferior.

Example 3 20 wt of polypropylene glycol having a molecular weight of 1000 as a permeable adhesive to MDF
%, Castor oil 20 wt%, polymeric MDI (NCO
About 36%) 40wt%, propylene carbonate 10w
The decorative veneer-attached veneer was obtained in the same manner as in Example 1 except that t% was adjusted. The appearance was excellent as in [Example 1]. The performance is summarized in (Table-1).

(Comparative Example to Example 3) [Example 3]
In the above, those lacking propylene carbonate were not compatible, were cloudy and had high viscosity, and could not be used for impregnation and adhesion to MDF.

Example 4 Polypropylene glycol 42 wt having a molecular weight of 2000 as a permeable adhesive to MDF
%, Polymeric MDI (NCO content approx. 36%) 41
wt% and 17 wt% of polypropylene carbonate. This composition is transparently compatible, has excellent permeability to MDF, and has a long pot life of one day or more. This composition has a thickness of 6
Approximately 10g is applied and penetrated into 30cm square MDF,
A thin paper decorative paper on which a grain pattern is printed in the same manner as in [Example 2] is placed, and adhesively cured at 120 ° C. and 10 kgf / cm ² for 5 minutes, and then a two-part liquid containing 20% by weight of a lubricant on its surface An MDF decorative board was obtained by applying a urethane paint and having excellent abrasion resistance and used as a flooring material without inter-sheet peeling.

[Example 5] 12 g of the permeable adhesive of [Example 4] was applied to and permeated into a 30 cm square MDF having a thickness of 6 mm, and then a thin paper decorative paper on which a grain pattern was printed was placed ( (The moisture content of the decorative paper is about 50%.)
Pressing and heating were performed at 0 ° C., 10 kgf / cm ² for 7 minutes, and the decorative paper was bonded simultaneously with embossing. The decorative paper was stretched in the water-containing state, and the adhesive itself had toughness, so that the decorative paper did not crack. Next, the embossed surface was wiped with an oil stin, and two-component urethane was applied in the same manner as in [Example 4] to obtain a decorative paper rich in natural wood. Performance (Table-1)
Are shown together.

Table 1 (Results of physical property test) Abrasion test (/ 100 times) * 1 Water resistance test * 2 Water absorption test Thickness (μm) Weight (mg) (24 hours) Example 1 3.4 7.5 No change No change Example 2 2.1 6.2 No change No change Example 3 2.2 7.0 No change No change Example 4 1.7 6.6 No change No change Example 5 5.8 13.0 No change No change * 1 JIS K5400 Wear test * 2 JAS Performance test of special plywood

Example 6 As a permeable adhesive to MDF, polypropylene glycol 420 having a molecular weight of 2,000 was used.
wt%, polymeric MDI (NCO content approx. 30%)
41 wt% and polypropylene carbonate 17 wt% were mixed and prepared. This composition was transparently compatible, had excellent permeability to MDF, and had a long pot life of one day. 10 g of this composition was applied to and permeated into a 30 mm square MDF having a thickness of 6 mm. Next, a thin paper decorative paper (water content: about 15%) on which a grain pattern is printed is placed on the application surface, a chrome-plated mirror plate is raised thereon, and a silicone rubber cushion member is placed on the back surface of the MDF to form a flat plate. 12 by press
Pressing and heating were performed at 0 ° C. and 10 kgf / cm ² for 5 minutes to bond the decorative paper. Further, the decorative surface was lightly polished with # 400 sandpaper, and finished with a clear two-component urethane resin paint to obtain a decorative paper-pasted MDF decorative board.

[Comparative Example 1 to Example 6] An MDF decorative board with decorative paper was obtained in the same manner as in Example 6, except that a polypropylene glycol having a molecular weight of 400 was used as the permeable adhesive to MDF.

[Comparative Example 2 to Example 6] Example 2 was repeated except that a vinyl acetate-urea emulsion adhesive was used as the adhesive for bonding the thin decorative paper to the MDF, and the heating time was 1 minute. In the same manner as in Example 6, an MDF decorative board with decorative paper was obtained.

Table 2 Water resistant A test Cross cut test Example 6 〇 比較 Comparative example 1 〇 △ Comparative example 2 × × Water resistant A test JAS Performance test of special plywood Cross cut test JIS K5400 Cross cut tape method 2 mm square 5 × 5 Criteria 基準 No defect △ Defect rate 5-15% × Defect rate 15% or more

[0041]

According to the present invention, the molecular weight is from 1,000 to 60.
By infiltrating the MDF with an isocyanate composition containing a polyoxyalkylene polyol having a relatively high molecular weight of 00, not only is the rigidity of the MDF not too hard and not too soft not only to strengthen the permeation layer of the MDF, By applying wood decorative veneer, decorative thin paper or water-based paint to improve the adhesive strength with the decorative layer and strengthen the decorative layer itself, it is excellent in abrasion resistance and has excellent peeling between paper and delamination between the decorative layer and MDF. It is possible to form a decorative plate without any difficulty, and it can be said that the method of the present invention is industrially useful as compared with the conventional example.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a decorative board according to the present invention in which the entire substrate is formed of MDF and the decorative layer is formed of a wooden decorative veneer or decorative thin paper.

FIG. 2 is a cross-sectional view of a decorative plate according to the present invention in which a substrate is formed by bonding MDF to the surface of a substrate body, and a decorative layer is formed of a decorative wooden veneer or decorative thin paper.

FIG. 3 is a cross-sectional view of a decorative plate according to the present invention in which the entire substrate is formed of MDF and a decorative layer is formed by applying a water-based paint.

FIG. 4 is a cross-sectional view of a decorative plate according to the present invention in which a substrate is formed by bonding MDF to the surface of a substrate main body, and a decorative layer is formed by applying a water-based paint.

FIG. 5 is a cross-sectional view showing a state in which the decorative board according to the present invention is heat-pressed and cured by a mirror-finished hard board and an elastic cushion member.

FIG. 6 is a cross-sectional view showing a state in which the decorative board according to the present invention is heated and cured by an embossed board and an elastic cushion member.

FIG. 7 is a cross-sectional view showing a state in which the decorative board according to the present invention is passed between an embossing roll and an elastic cushion roll and is heated and hardened.

[Explanation of symbols]

 (A) ... decorative board (1) ... decorative layer (2) ... board (2a) ... MDF (3) ... board body

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location B32B 27/04 B32B 27/04 A

Claims (5)

[Claims] 1. A polymethylene polyphenyl polyisocyanate having a molecular weight of 1000 or less is provided on a substrate whose whole or surface portion is formed of a medium density wood fiber board.
As described above, after applying and penetrating an isocyanate composition containing a polyoxyalkylene polyol of 6000 or less and an alkylene carbonate as essential components, a decorative layer is formed in an uncured state, and integrated by heating and pressing. A method for producing a decorative board, characterized by comprising: 2. The method for producing a decorative board according to claim 1, wherein the decorative layer is made of a wooden decorative veneer containing 10% or more of water. 3. The method according to claim 1, wherein the decorative layer is made of decorative thin paper. 4. A polymethylene polyphenyl polyisocyanate having a molecular weight of 1000 or less is provided on a substrate whose whole or surface portion is formed of a medium density wood fiber board.
Above, 6000 or less polyoxyalkylene polyol and an isocyanate composition containing an alkylene carbonate as an essential component is applied and allowed to penetrate, and then in an uncured state, an aqueous coating is applied to form a gel, heated and pressed. And vulcanizing it. 5. The makeup according to claim 1, wherein a surface pressing member is provided on the decorative surface at the time of heating / pressing, and an elastic cushion member is provided on the back surface of the substrate. Plate manufacturing method.